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rockturner_setup.exe

Rock Turner

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application rockturner_setup.exe by Rock Turner has been detected as adware by 14 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages. While running, it connects to the Internet address api.yontoo.com on port 80 using the HTTP protocol.
Publisher:
Rock Turner  (signed and verified)

MD5:
564452274aa709c9e7935639b3dffaaf

SHA-1:
ae95042f7c4b6aa8d3d4da3686c9557683b166de

SHA-256:
da5d69db2435b4dd117c83b054570b52b8baac17b22a78cecfffe77ace3d5329

Scanner detections:
14 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/23/2024 7:11:29 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AVG
BrowseFox
2015.0.3398

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14730

Clam AntiVirus
Win.Adware.Linkular
0.98/19168

Dr.Web
infected with Trojan.BPlug.96
9.0.1.05190

ESET NOD32
Win32/BrowseFox.H potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/BrowseFox
7/30/2014

Malwarebytes
PUP.Optional.RockTurner.A
v2014.07.30.03

McAfee
Artemis!547DDDB02084
5600.7054

Reason Heuristics
PUP.Installer.RockTurner.Q
14.7.30.2

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14728

SUPERAntiSpyware
Adware.BrowseFox/Variant
10453

Trend Micro House Call
TROJ_GE.764EB01F
7.2.211

File size:
2 MB (2,088,216 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\Documents and Settings\{user}\Local settings\temp\{random}.tmp\rockturner_setup.exe

Digital Signature
Signed by:
Rock Turner

Authority:
VeriSign, Inc.

Valid from:
3/14/2014 1:00:00 AM

Valid to:
3/15/2015 12:59:59 AM

Subject:
CN=Rock Turner, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Rock Turner, L=Santa Monica, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
71A33D3A2D147E26FB179221834AF81F

File PE Metadata
Compilation timestamp:
12/5/2009 11:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:+4vF8sT4xz0gjiognPZegWgA5Y993unuC2L6BGeYl13N46BWz85:VusEz0oiognP8g/3uv2GB8DNpBh5

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to wac.edgecastcdn.net  (72.21.81.13:80)

TCP (HTTP):
Connects to service.yontoo.com  (8.25.35.148:80)

TCP (HTTP):
Connects to api.yontoo.com  (8.25.35.15:80)

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